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tetradifon (Ref: ENT 23737)
** tedion ** sulfone ** Translations

Environmental Fate - Ecotoxicology - Human Health - A to Z Index - Home

GENERAL INFORMATION Click here for an explantaion of the general chemical status information
for tetradifon

Description: An acaricide for use in horticultural crops to control a wide range of phytophagous mites

Example pests controlled: Citrus spider mite; Red spider mite; Flat mites; yellow mite

Example applications: Apples; Pears; Peaches; Citrus; Ornamentals; Cotton; Tea

Efficacy & activity: -

Availability status: Current

Introduction & key dates: circa 1955

EC Regulation 1107/2009 (repealing 91/414):
Status Not approved
Dossier rapporteur/co-rapporteur Not applicable
Date inclusion expires Expired
EU Candidate for substitution (CfS) -
Listed in EU database Yes

Approved for use () or known to be used () in the following European countries: Click to access a note on the approvals information on this site

AT

BE

BG

CY

CZ

DE

DK

EE

EL

ES

FI

FR

HR

HU

IE

IT

LT

LU

LV

MT

NL

PL

PT

RO

SE

SI

SK

UK

Also used in: Australia

Chemical structure: Click here for further information on the general chemical status information used on this site
Isomerism None
Chemical formula C12H6Cl4O2S
Canonical SMILES C1=CC(=CC=C1S(=O)(=O)C2=CC(=C(C=C2Cl)Cl)Cl)Cl
Isomeric SMILES No data
International Chemical Identifier key (InChIKey) MLGCXEBRWGEOQX-UHFFFAOYSA-N
International Chemical Identifier (InChI) InChI=1S/C12H6Cl4O2S/c13-7-1-3-8(4-2-7)19(17,18)12-6-10(15)9(14)5-11(12)16/h1-6H
Structure diagram/image available? Yes

General status: Click here for further information on the general chemical status information used on this site
Pesticide type Acaricide, Insecticide
Substance group Bridged diphenyl
Minimum active substance purity -
Known relevant impurities -
Substance origin Synthetic
Mode of action Non-systemic with larvicidal and ovicidal activity. Acts by inhibiting oxidative phosphorylation.
CAS RN 116-29-0
EC number 204-134-2
CIPAC number 113
US EPA chemical code 079202
PubChem CID 8305
Molecular mass (g mol-1) 356.06
PIN (Preferred Identification Name) 1,2,4-trichloro-5-(4-chlorobenzene-1-sulfonyl)benzene
IUPAC name 4-chlorophenyl 2,4,5-trichlorophenyl sulfone
CAS name 1,2,4-trichloro-5-((4-chlorophenyl)sulfonyl)benzene
Other status information OSPAR soc
Relevant Environmental Water Quality Standards -
Herbicide Resistance Classification (HRAC) Not applicable
Herbicide Resistance Classification (WSSA) Not applicable
Insecticide Resistance Classification (IRAC) 12C
Fungicide Resistance Classification (FRAC) Not applicable
Examples of recorded resistance Panonychus citri
Panonychus ulmi
Tetranychus mcdanieli
Tetranychus urticae
Physical state Colourless crystals
Related substances & organisms

Formulations:
Property Click here for information on the general product and branding information used on this site Value
Example manufacturers & suppliers of products using this active now or historically
  • Chemtura
  • King Tech Corp
  • FMC
  • Duphar
Example products using this active
  • Acaroil TD
  • Ovifac
  • Propachem Super
  • Tetrapaz
UK LERAP status No UK approval for use as a pesticide under EC Regulation 1107/2009
Formulation and application details Available in a variety of formulations including emulsifiable concentrates, wettable powders and smoke generators.


ENVIRONMENTAL FATE
for tetradifon

Property Click here for information on the parameters used to describe environmental fate on this site Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with fate data Interpretation Click here for information on the way in which we interpret environmental fate data
Solubility - In water at 20oC (mg l-1) 0.078 L3 Low
Solubility - In organic solvents at 20oC (mg l-1) 82000 C4 - Acetone -
255000 C4 - Chloroform -
10000 C4 - Methanol -
115000 C4 - Xylene -
Melting point (oC) 146 L3 -
Boiling point (oC) - - -
Degradation point (oC) - - -
Flashpoint (oC) - - -
Octanol-water partition coefficient at pH 7, 20oC P 4.07 X 1004 Calculated -
Log P 4.61 L3 High
Bulk density (g ml-1)/Specific gravity 1.52 L3 -
Dissociation constant (pKa) at 25oC - - -
Note:
Vapour pressure at 20oC (mPa) 3.20 X 10-05 C4 Low volatility
Henry's law constant at 25oC (Pa m3 mol-1) 1.46 X 10-04 L3 Non-volatile
GUS leaching potential index Click here for a note on the limitations of the GUS index 4.10 Calculated High leachability
SCI-GROW groundwater index (μg l-1) for a 1 kg ha-1 or 1 l ha-1 application rate Click here for a note on the limitations of the SCI-GROW index Value 1.44 X 10+00 Calculated -
Note -
Potential for particle bound transport index Click here for a note on the limitations of the potential for particle bound transport index - Calculated Medium
Maximum UV-vis absorption L mol-1 cm-1 - - -
Surface tension (mN m-1) - - -

Degradation:
Property Click here for information on the parameters used to describe substance degradation Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with degradation data Interpretation Click here for information on the way in which we interpret substance degradation data
General biodegradability -
Soil degradation (days) (aerobic) DT50 (typical) 112 C4 Persistent
DT50 (lab at 20oC) 112 C4 Persistent
DT50 (field) - - -
DT90 (lab at 20oC) - - -
DT90 (field) - - -
DT50 modelling endpoint - - -
Note: -
Dissipation rate RL50 on plant matrix Value 8.0 R3 -
Note Alfalf leaves, n=1
Dissipation rate RL50 on and in plant matrix Value 6.1 R3 -
Note Published literature RL50 range 5.2-7.0 days, fruit from 2 field grown crops, n=2
Aqueous photolysis DT50 (days) at pH 7 Value - - -
Note -
Aqueous hydrolysis DT50 (days) at 20oC and pH 7 Value Stable C2 -
Note -
Water-sediment DT50 (days) - - -
Water phase only DT50 (days) - - -

Soil adsorption and mobility:
Property Click here for information on the parameters used to describe substance adsorption and mobility Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with adsorption and mobility data Interpretation Click here for information on the way in which we interpret substance adsorption and mobility
Linear Kd - W3 Moderately mobile
Koc 100
Notes and range -
Freundlich Kf - - -
Kfoc -
1/n -
Notes and range -
pH sensitivity -


ECOTOXICOLOGY
for tetradifon

Property Click here for information on the parameters used to describe substance ecotoxicology Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with ecotoxicology data Interpretation Click here for information on the way in which we interpret substance ecotoxicology
Bio-concentration factor BCF (l kg-1) 190 P4 (Other literature Log BCF range 1.7-2.0 (R3)) Threshold for concern
CT50 (days) Not available -
Mammals - Acute oral LD50 (mg kg-1) > 14700 L3 Rat Low
Mammals - Short term dietary NOEL (mg kg-1) - L2 Rat, 2 year -
(ppm diet) 200 -
Birds - Acute LD50 (mg kg-1) > 5000 L3 Anas platyrhynchos Low
Birds - Short term dietary (LC50/LD50) - - -
Fish - Acute 96 hour LC50 (mg l-1) > 880 L3 Lepomis macrochirus Low
Fish - Chronic 21 day NOEC (mg l-1) - - -
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) > 2 L3 Daphnia magna Moderate
Aquatic invertebrates - Chronic 21 day NOEC (mg l-1) - - -
Aquatic crustaceans - Acute 96 hour LC50 (mg l-1) - - -
Sediment dwelling organisms - Acute 96 hour LC50 (mg l-1) - - -
Sediment dwelling organisms - Chronic 28 day NOEC, static, water (mg l-1) - - -
Sediment dwelling organisms - Chronic 28 day NOEC, sediment (mg kg-1) - - -
Aquatic plants - Acute 7 day EC50, biomass (mg l-1) - - -
Non-target plants - - -
- - -
Algae - Acute 72 hour EC50, growth (mg l-1) > 100 L3 Raphidocelis subcapitata Low
Algae - Chronic 96 hour NOEC, growth (mg l-1) - - -
Honeybees Contact acute 48 hour LD50 (μg bee-1) > 11 C4 Moderate
Oral acute 48 hour LD50 (μg bee-1) - - -
Unknown mode acute 48 hour LD50 (μg bee-1) - - -
Earthworms - Acute 14 day LC50 (mg kg-1) > 5000 L3 Low
Earthworms - Chronic 14 day NOEC, reproduction (mg kg-1) - - -
Other soil macro-organisms - e.g. Collembola LR50 / EC50 / NOEC / % Effect - - -
Other arthropod (1) LR50 g ha-1 - - -
% Effect Harmless Dose: 96 g ha-1
AA3 Typhlodromus pyri 		-
Other arthropod (2) LR50 g ha-1 - - -
% Effect Harmless Dose: 96 g ha-1
AA3 Chrysoperla carnea 		-
Soil micro-organisms - - -
Mesocosm study data NOEAEC mg l-1 - - -
NOEAEC mg l-1 - - -


HUMAN HEALTH AND PROTECTION
for tetradifon

General:
Property Click here for information on the parameters used to describe human health and protection issues Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with human health and protection data Interpretation Click here for information on the way in which we interpret human health and protection data
Threshold of Toxicological Concern (Cramer Class) Click here for a note on the limitations of the Cramer class High (class III) - -
Mammals - Acute oral LD50 (mg kg-1) > 14700 L3 Rat Low
Mammals - Dermal LD50 (mg kg-1 body weight) > 10000 L3 Rabbit -
Mammals - Inhalation LC50 (mg l-1) 3.0 L3 Rat, 4 hr -
Other Mammal toxicity endpoints - -
ADI - Acceptable Daily Intake (mg kg-1bw day-1) - - -
ARfD - Acute Reference Dose (mg kg-1bw day-1) - - -
AAOEL - Acute Acceptable Operator Exposure Level (mg kg-1 bw day-1) - - -
AOEL - Acceptable Operator Exposure Level - Systemic (mg kg-1bw day-1) - - -
Dermal penetration studies (%) - - -
Dangerous Substances Directive 76/464 - - -
Exposure Limits - - -
Exposure Routes Public -
Occupational May be absorbed into the body by inhalation of dust
European MRLs Click here for the EU MRL pesticide database
Drinking Water Standards - - -
Drinking Water MAC (μg l-1) - - -

Health issues:
Carcinogen Mutagen Endocrine disrupter Reproduction / development effects Cholinesterase inhibitor Neurotoxicant

Respiratory tract irritant Skin irritant Skin sensitiser Eye irritant Phototoxicant

-

-

General human health issues Possible liver and kidney toxicant

: Yes, known to cause a problem
: No, known not to cause a problem
: Possibly, status not identified
- : No data found

Handling issues:
Property Click here for information on the parameters used to describe substance handling issues Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with data on handling issues Interpretation Click here for information on the way in which we interpret data on handling issues
General Click here for a description of the International Maritime Dangerous Goods (IMDG) codes Prevent generation of dust
Flammable
Tackle fires using a water spray or dry chemicals
CLP classification 2013 None allocated at this time
EC Risk Classification Click here to view information omn the EU risk phrases Xn- Harmful: R22
H - Handling risks: R10
EC Safety Classification Click here to view information omn the EU safety phrases -
WHO Classification U - Unlikely to present an acute hazard
US EPA Classification (formulation) III - Caution - Slightly toxic
UN Number 1993
Waste disposal & packaging Click here for a description of UN packaging marks Dispose of as chemical waste of low toxicity


TRANSLATIONS
for tetradifon

Language Name
English tetradifon
French tetradifon
German Tetradifon
Danish tetradifon
Italian tetradifon
Spanish tetradifon
Greek -
Slovenian tetradifon
Polish tereadifon
Swedish tetradifon
Hungarian -
Dutch -

Record last updated: Friday 25 May 2018
Contact: aeru@herts.ac.uk